यदि tan A= (1)/(sqrt3) और tan B= sqrt3 त...

यदि `tan A= (1)/(sqrt3)` और `tan B= sqrt3` तो `cosA. cos B- sin A.sin B` का मान होगा-

A

0

B

1

C

`(1)/(2)`

D

`(sqrt3)/(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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